mandoc: Explain how to transform markup for the terminal when not using

mandoc: Explain how to transform markup for the terminal when not using

[schwarze]

Log Message:
-----------
Explain how to transform markup for the terminal when not using a 
pager, and how to remove markup.  Add related cross references.
While here, as suggested by jmc@, replace the excessive cross
references to the intro pages by a more relevant one to mandoc(1).
Triggered by a question from, using feedback from, and OK jmc@.

Modified Files:
--------------
    mandoc:
        man.1

Revision Data
-------------
Index: man.1
===================================================================
RCS file: /home/cvs/mandoc/mandoc/man.1,v
retrieving revision 1.29
retrieving revision 1.30
diff -Lman.1 -Lman.1 -u -p -r1.29 -r1.30
--- man.1
+++ man.1
@@ -78,6 +78,18 @@ Copy the manual page to the standard out
 .Xr more 1
 to paginate it.
 This is done by default if the standard output is not a terminal device.
+.Pp
+When using
+.Fl c ,
+most terminal devices are unable to show the markup.
+To print the output of
+.Nm
+to the terminal with markup but without using a pager, pipe it to
+.Xr ul 1 .
+To remove the markup, pipe the output to
+.Xr col 1
+.Fl b
+instead.
 .It Fl f
 A synonym for
 .Xr whatis 1 .
@@ -303,18 +315,12 @@ See
 for details.
 .Sh SEE ALSO
 .Xr apropos 1 ,
-.Xr intro 1 ,
+.Xr col 1 ,
+.Xr mandoc 1 ,
+.Xr ul 1 ,
 .Xr whereis 1 ,
-.Xr intro 2 ,
-.Xr intro 3 ,
-.Xr intro 4 ,
-.Xr intro 5 ,
 .Xr man.conf 5 ,
-.Xr intro 6 ,
-.Xr intro 7 ,
-.Xr mdoc 7 ,
-.Xr intro 8 ,
-.Xr intro 9
+.Xr mdoc 7
 .Sh STANDARDS
 The
 .Nm
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